Ice-cream overrun tester



W. J. McLAUGHLIN. ICE CREAM ova-mun nsnfln. 7 APPLICATION FILED JIAY 19. 1920.

1,41 6,730. j Patented May 23,1922.

In v5 (0/? WILL/1m a. M; 0000; 10.

BY Ills firromv: rs.

UNITED STATES.

PATENT OFFICE.

ICE-CREAM OVERRUN TESTER.

Application filed May 19,

To all to 7mmt may concern Be it known that I,\V1LL1AM J. McLAUon- LIN, a citizen of the United States, residing at Owatonna, inothe county of Steele and State of Minnesota, have invented certain new and useful Improvements in Ice-Cream Overrun Testers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention'provides, what is termed an ice cream over-run tester, the same being in the nature of an attachment for scales, whereby the percentage of increase in the bulk of ice cream, or the like, in freezing, may be readily determined.

Generally stated, the invention consists of the novel devices and combinations of devices hereinafter described and defined in the claims. I

It is a well known fact that the ice cream, in freezing, will very greatly increase in bulk. The extent to which it will increase depends partly on the degree to which it is frozen, and partly upon the nature of the liquid mixture that is being frozen. WVhat is desired by the trade is approximately a 100 per cent increase in the bulk of the frozen ice cream over that of the liquid, per unit of weight. My invention provides a simple and eflicient attachment for scales, whereby the operator can readily determine when the 100 per cent increase, or any other percentage of increase desired, may be readily determined.

The invention is illustrated in the accom panying drawings wherein like characters indicate like parts throughout the several views.

Referring to the drawings:

Fig. l is a side elevation showing a small beam scale of standard construction having an over-run tester with percentage indicator attached theretoyand Fig. 2 is a detail in elevation, showing the indicator with the percentage indicator removed from the scale proper.

Of the parts of the scale, the numeral 3 indicates the base, the numeral 4 its fulcrum bracket and the numeral 5 the scale beam, the numeral 6 the poise movable on said scale beam, and the numeral 7 indicates the beam- Specification of Letters Patent.

Patented May 1920. Serial No. 382,489.

supported load carrying plate of the scale.

The scale beam 5 is graduated to indicate ounces and fractions thereof.

in the application of my attachment, I have shown an arm-like bracket 8 attached to the scale beam 3 and provided at its free end with a fork 9 that embraces the extended end of the scale beam and limits the vibra tory movements of the latter. The percentage indicator, in the present form of this invention, is in the'form of an approximately triangular plate 10, which, near its apex, is pivotally connected at 11 to the upper end of an upright arm 12, which latter, at its lower end, is pivoted to the bracket 8 at 13 and is provided with an extended base having a segmental slot lt through which, and a perforation in the bracket 8,. is passed a nut-equipped bolt 15. \Vhen the nut of the bolt 15 is tightened, it will hold the arm 12 in any set adjustment.

The pivot at 11 is preferably made by a nut-equipped bolt, the nut of which is tightened to hold the plate 10 in any desired vertical adjustment.

On the front face of the plate 10 is a graduated scale which, as shown, is made up of five lines that radiate from the axis of the pivot 11. In length, the lower of said radiating lines is onehalf the distance represented on the beam 5 between zero mark and the 16-ounce mark; the second radial line from bottom represents one-half the distance between the zero mark and the ounce mark on scale beam 5; the third radial line from bottom is one-half the length of the distance between the zero and the 15 ounce mark on the beam 5 g the fourth radial line frombottom is, in length, one-half the distance between the .zero mark the 1 2-}; ounce mark on beam 5 and the upper radial line is one-half the length of the distance between the zero mark and the 14 ounce mark on said beam 5. The curved lines that intersect the said radial lines divide the several radial lines proportionately into these fractions of the 100 per cent increase. The numeral 16 indicates a measuring cup which will contain approximately 14 to 16 ounces of unfrozen ice cream forming substance and which should contain properly frozen ice-cream in approximately one-half the original Weight.

The numeral 17 indicates a pointer carried by the poise 6, the point oi? which is adapted to register approximately with the axis of the pivot 11.

The weight of the empty cups 16 may be counterbalanced by the supplemental poise 6 mounted on the extreme end of the beam 5.

The use of the device may be illustrated as follows:

The cup is filled with the liquid ice-cream forming substance and being weighed on the scale will be, for instance, found-to weigh just 16 ounces. Then the arm 12 should be adjusted so that the pointer 17 will align with the axis of pivot 11; and then the plate 10 should be adjusted vertically so that its lower radial line marks the outer end, but the numeral 16 indicating 16 ounces, will be in a horizontal position above the scale beam 5. Then during the process of freezing, the frozen ice-cream should be weighed from time to time until it is found that the cup 16, filled therewith, will balance the poise 6 when its pointer 17 is brought to the extreme outer end of the said lower radial line. This, oil: course, will indicate that the bulk of the ice-cream is increased 100 per cent, or in other words, that the weight per unit of measure is decreased one-half.

To illustrate again, it the cup 16 filled. with the liquid ice-cream 'tornnng substance indicates a weight thereof olt' 14 ounces on the scale, then the arms 12 should be moved to the left until the axis of pivot level again registers with pointer 17 and then the plate 10 should be turned down until its u 'iper radial line mark the weight 14loun'ccs, is brought to a horizontal position over the scale beam Then from time to time, during the freezing oi. the cream it should be weighed until a cupful thereof balances the poise 6 with the pointer 17 registering with the outer extremity oi said upper radial line. This, of course, will then indicate that the liquid ice-cream forming substance has increased its bulk 100 per cent, or in other words, that its weight has been decreased to one halit its original weight, per unit of measure.

Obviously, the invention is capable of modification within the principles above disclosed.

VVh-at I claim is:

l. The combination with a weighing scale comprising a single scale beam anl poise original weights, and a pointer on said poise co-operating with said scale to indicate when the bulk of frozen substance has been increased to a proper percentage.

2. The combination with a weighing scale comprising a scale beam and a poise movable thereon, of a bulk percentage indicator associated with said scale and co-operating with said poise, said percentage indicator comprising an arm movable toward and from the zero mark of the scale beam, a graduated plate carried by said arm and having thereon a plurality of lines oi different lengths representing a predetermined per centage oi diitl'crent original weights, and a pointer on said poise cooperating with the lines on said plate.

3. The combination with a weighing scale comprising a scale beam and a poise movable thereon, of a bulk percentage indicator associated with said scale and co-operating with said poise, said percentage indicator comprising an arm movable toward and from the zero mark of the scale beam, and a grad uated plate pivotally connected to said arm and having a plurality of lines radiating from its pivot, said lines being of different lengths and representing a predetermined percentage of dili'erent original weights. means for securing said arm and graduated plate in dillerent adjustments, and a pointer on said poise co-operating with the several lines on said plate.

1:. The combination with a weighing scale comprising a scale beam and a poise, of a. bulk percentage indicator grai'luated with a plurality 0t lines radiating from a p int thereon supported adjacent said beam and capable o'li adjustment to bring said lines into a position substantially horizontal to the said beam, said positions depending upon the original weight of the bulk material, and means on the poise co operating with the graduations on said indi water.

5. A bulk percentage testing device comprising a scale having the usual scale beam and a poise movable thereon, and a stationary bulk indicator supported adjacent said beam so that said poise is movable on the beam to be brought into a line with said indicator and cooperating therewith, an angul-.;ly adjustable supporting arm for said indicator, and means for adj ustably supporting said indicator on said arm.

In testimony whereof I my signature in presence of two witnesses.

G. C. JAMES. 

